All three carriers put up registration pages on their website, and Sprint and T-Mobile holding some interesting contests related to the device.

Sprint will launch the handset at some point in July, and it will be the only U.S. carrier to have the Shine Gold option in stock. The mobile operator will offer users a chance to win 20 G3 devices, and the contest’s rules indicate that the phone’s value is $599.99, but an official price isn’t available.

T-Mobile will give some lucky winners one “advance-release Beta model” of the handset per day until June 29th (there are 34 in total), thus letting them try out the handset before anyone else. It’s not clear whether the phone will launch on June 29th or in the following weeks, and LG isn’t saying anything about availability dates. According to its contest rules, the value of the Beta model is $650 — again, the official T-Mobile G3 price is not available.

In its contest rules, T-Mobile also explained what the G3 Beta actually is: “the prize is a pre-production ‘Beta’ unit and is not a final commercial hardware/software,” adding that “while not guaranteed, every effort will be made to update the prize phone to final commercial hardware/software when available (at Sponsor’s sole expense).”

Verizon has yet to post any information about the handset’s availability on its network.